Sleep and circadian rhythm disruption in schizophrenia.

BACKGROUND: Sleep disturbances comparable with insomnia occur in up to 80% of people with schizophrenia, but very little is known about the contribution of circadian coordination to these prevalent disruptions. AIMS: A systematic exploration of circadian time patterns in individuals with schizophre...

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ग्रंथसूची विवरण
मुख्य लेखकों: Wulff, K, Dijk, D, Middleton, B, Foster, R, Joyce, E
स्वरूप: Journal article
भाषा:English
प्रकाशित: 2012
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author Wulff, K
Dijk, D
Middleton, B
Foster, R
Joyce, E
author_facet Wulff, K
Dijk, D
Middleton, B
Foster, R
Joyce, E
author_sort Wulff, K
collection OXFORD
description BACKGROUND: Sleep disturbances comparable with insomnia occur in up to 80% of people with schizophrenia, but very little is known about the contribution of circadian coordination to these prevalent disruptions. AIMS: A systematic exploration of circadian time patterns in individuals with schizophrenia with recurrent sleep disruption. METHOD: We examined the relationship between sleep-wake activity, recorded actigraphically over 6 weeks, along with ambient light exposure and simultaneous circadian clock timing, by collecting weekly 48 h profiles of a urinary metabolite of melatonin in 20 out-patients with schizophrenia and 21 healthy control individuals matched for age, gender and being unemployed. RESULTS: Significant sleep/circadian disruption occurred in all the participants with schizophrenia. Half these individuals showed severe circadian misalignment ranging from phase-advance/delay to non-24 h periods in sleep-wake and melatonin cycles, and the other half showed patterns from excessive sleep to highly irregular and fragmented sleep epochs but with normally timed melatonin production. CONCLUSIONS: Severe circadian sleep/wake disruptions exist despite stability in mood, mental state and newer antipsychotic treatment. They cannot be explained by the individuals' level of everyday function.
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spelling oxford-uuid:a55f8c23-a100-40ef-accb-c4fd41f781272022-03-27T02:40:03ZSleep and circadian rhythm disruption in schizophrenia.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a55f8c23-a100-40ef-accb-c4fd41f78127EnglishSymplectic Elements at Oxford2012Wulff, KDijk, DMiddleton, BFoster, RJoyce, E BACKGROUND: Sleep disturbances comparable with insomnia occur in up to 80% of people with schizophrenia, but very little is known about the contribution of circadian coordination to these prevalent disruptions. AIMS: A systematic exploration of circadian time patterns in individuals with schizophrenia with recurrent sleep disruption. METHOD: We examined the relationship between sleep-wake activity, recorded actigraphically over 6 weeks, along with ambient light exposure and simultaneous circadian clock timing, by collecting weekly 48 h profiles of a urinary metabolite of melatonin in 20 out-patients with schizophrenia and 21 healthy control individuals matched for age, gender and being unemployed. RESULTS: Significant sleep/circadian disruption occurred in all the participants with schizophrenia. Half these individuals showed severe circadian misalignment ranging from phase-advance/delay to non-24 h periods in sleep-wake and melatonin cycles, and the other half showed patterns from excessive sleep to highly irregular and fragmented sleep epochs but with normally timed melatonin production. CONCLUSIONS: Severe circadian sleep/wake disruptions exist despite stability in mood, mental state and newer antipsychotic treatment. They cannot be explained by the individuals' level of everyday function.
spellingShingle Wulff, K
Dijk, D
Middleton, B
Foster, R
Joyce, E
Sleep and circadian rhythm disruption in schizophrenia.
title Sleep and circadian rhythm disruption in schizophrenia.
title_full Sleep and circadian rhythm disruption in schizophrenia.
title_fullStr Sleep and circadian rhythm disruption in schizophrenia.
title_full_unstemmed Sleep and circadian rhythm disruption in schizophrenia.
title_short Sleep and circadian rhythm disruption in schizophrenia.
title_sort sleep and circadian rhythm disruption in schizophrenia
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AT dijkd sleepandcircadianrhythmdisruptioninschizophrenia
AT middletonb sleepandcircadianrhythmdisruptioninschizophrenia
AT fosterr sleepandcircadianrhythmdisruptioninschizophrenia
AT joycee sleepandcircadianrhythmdisruptioninschizophrenia